Home / 1,292,454.38-1,938,961.20-393,872.36

Finding the Fourth Proportional to 1,292,454.38, 1,938,961.20 and 393,872.36

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Solution

The fourth proportional to 1,292,454.38, 1,938,961.20 and 393,872.36 is: 590,893.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,292,454.38 : 1,938,961.20 = 393,872.36 : x
  2. Step 2: Convert to fraction form
    1,292,454.38/1,938,961.20 = 393,872.36/x
  3. Step 3: Cross multiply
    1,292,454.38x = 1,938,961.20 × 393,872.36
  4. Step 4: Simplify right side
    1,292,454.38x = 763,703,223,792.43
  5. Step 5: Solve for x
    x = 763,703,223,792.43/1,292,454.38
  6. Step 6: Final answer
    x = 590,893.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.